function tables (

		str_tableid, 

		num_header_offset, 

		num_footer_offset, 

		str_odd_color,

		str_even_color, 

		str_mover_color, 

		str_onclick_color

	) {



	 // skip non DOM browsers

	if (typeof(document.all) != 'object') return;



	// validate required parameters

	if (!str_tableid) return alert ("No table(s) ID specified in parameters");

	var obj_tables = (document.all ? document.all[str_tableid] : document.getElementById(str_tableid));

	if (!obj_tables) return alert ("Can't find table(s) with specified ID (" + str_tableid + ")");



	// set defaults for optional parameters

	var col_config = [];

	col_config.header_offset = (num_header_offset ? num_header_offset : 0);

	col_config.footer_offset = (num_footer_offset ? num_footer_offset : 0);

	col_config.odd_color = (str_odd_color ? str_odd_color : '#ffffff');

	col_config.even_color = (str_even_color ? str_even_color : '#dbeaf5');

	col_config.mover_color = (str_mover_color ? str_mover_color : '#6699cc');

	col_config.onclick_color = (str_onclick_color ? str_onclick_color : '#4C7DAB');

	

	// init multiple tables with same ID

	if (obj_tables.length)

		for (var i = 0; i < obj_tables.length; i++)

			tt_init_table(obj_tables[i], col_config);

	// init single table

	else

		tt_init_table(obj_tables, col_config);

}



function tt_init_table (obj_table, col_config) {

	var col_lconfig = [],

		col_trs = obj_table.rows;

	for (var i = col_config.header_offset; i < col_trs.length - col_config.footer_offset; i++) {

		col_trs[i].config = col_config;

		col_trs[i].lconfig = col_lconfig;

		col_trs[i].set_color = tt_set_color;

		col_trs[i].onmouseover = tt_mover; 

		col_trs[i].onmouseout = tt_mout;

		col_trs[i].onmousedown = tt_onclick;

		col_trs[i].order = (i - col_config.header_offset) % 2;

		col_trs[i].onmouseout();

	}

}

function tt_set_color(str_color) {

	this.style.backgroundColor = str_color;

}



// event handlers

function tt_mover () {

	if (this.lconfig.clicked != this)

		this.set_color(this.config.mover_color);

}

function tt_mout () {

	if (this.lconfig.clicked != this)

		this.set_color(this.order ? this.config.odd_color : this.config.even_color);

}

function tt_onclick () {

	if (this.lconfig.clicked == this) {

		this.lconfig.clicked = null;

		this.onmouseover();

	}

	else {

		var last_clicked = this.lconfig.clicked;

		this.lconfig.clicked = this;

		if (last_clicked) last_clicked.onmouseout();

		this.set_color(this.config.onclick_color);

	}

}

	function ShowOrHide(d1, d2) {
	  if (d1 != '') DoDiv(d1);
	  if (d2 != '') DoDiv(d2);
	}
	function DoDiv(id) {
	  var item = null;
	  if (document.getElementById) {
		item = document.getElementById(id);
	  } else if (document.all){
		item = document.all[id];
	  } else if (document.layers){
		item = document.layers[id];
	  }
	  if (!item) {
	  }
	  else if (item.style) {
		if (item.style.display == "none"){ item.style.display = ""; }
		else {item.style.display = "none"; }
	  }else{ item.visibility = "show"; }
 	}


function blockError(){return true;}

window.onerror = blockError;